Minebea Mitsumi Inc.

Yasuhiro Ikehara

Yutaka Kamogi

A motor according to the present disclosure is a motor including a motor body part and a driving circuit part, the motor body part including: a rotor; a stator including a wound coil; a winding terminal electrically connected to the coil and extending toward the driving circuit part; and a frame housing the rotor and the stator, wherein the driving circuit part includes: a case including a first attaching portion and a frame portion with openings on both end sides of the frame portion; a first wiring board including a driving circuit and a power device mounted on the first wiring board, the first wiring board being fixed to the first attaching portion; and a first electric wiring member including a first stress absorbing portion formed into a shape absorbing stress, the first electric wiring member electrically connecting the winding terminal and the first wiring board.

Motor with stress absorbing portions

A motor comprises a motor main body including a rotor and a stator around which a coil is wound, a drive circuit part including a circuit board to which a drive circuit including a power element is attached on mainly one face, a heat sink arranged on another face of the circuit board and to radiate heat of the drive circuit part, and a winding terminal to which at one side of the winding terminal an end portion of the coil of the motor main body is electrically connected. Another side of the winding terminal is partially electrically connected to the power element attached to the circuit board, and the winding terminal conducts heat generated by the power element from the one face to the other face of the circuit board.

Growing community of inventors

Fukuroi, Japan

Yasuhiro Ikehara